(19)

(11)

EP 3 609 603 A1

(12)

(43) Date of publication: 19.02.2020 Bulletin 2020/08 (21) Application number: 18720912.7 (22) Date of filing: 10.04.2018

(51) International Patent Classification (IPC):  B01D 53/04(2006.01) B01D 53/047(2006.01) B01J 20/18(2006.01) (86) International application number: PCT/US2018/026794 (87) International publication number: WO 2018/191203 (18.10.2018 Gazette 2018/42)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 11.04.2017 US 201762484149 P 09.04.2018 US 201815948153 (71) Applicant: Praxair Technology, Inc. Danbury, CT 06810 (US)	(72) Inventors: STUCKERT, Nicholas, R. Grand Island NY 14072 (US) LUO, Yang Amherst NY 14051 (US) (74) Representative: Schwan Schorer & Partner mbB  Patentanwälte Bauerstrasse 22 80796 München 80796 München (DE)